小麦叶锈病抗性基因定位研究进展

中图分类号 S435.121.43 文献标志码A 文章编号 1007-7731（2026）06-0052-05

DO1号 10.16377/j.cnki.issn1007-7731.2026.06.014

Research progress on the mapping of wheat leaf rust resistance genes

Yao HongniLiu ZhongyanJiang HuiliWei YanliYao JianxinWang BinlongZhang PingLi Ruiguo （Xianyang Academy of Agricultural Sciences， Xianyang 712034， China）

AbstractTo systematically promote multi-gene pyramiding breeding，this study reviewed the mapping methods， mapping achievements，challenges，and prospectsof leaf rust resistance （Lr）genes in wheat.In the identificationof diseaseresistance genes， numerous wheat leaf rust resistance genes and quantitative trait loci （QTLs）forresistance have been mapped using gene mapping strategies，including the construction of genetic linkage maps，genome-wide association study （GWAS）， mutant library screening，and transcriptome sequencing. Some Lr geneswere derived from wheat relatives，and most of the named Lr genes were seedling resistance genes. Several of these genes have been applied in breeding practice via marker-asisted selection.However，the large andcomplex wheat genome，the breakdown of most identified Lr genes by the pathogen，and the insufficient development of molecular markers have limitedthe efficientutilization of disease resistance genes.In the future，the combinedapplication of multi-gene pyramiding，gene editing technology，regional germplasm resource sharing，and intelligent cultivation techniques is expected to breed high-quality wheat varieties with highand stable yieldaswellas broad-spectrumresistance.This paper provides a reference for the mining and breeding utilization of wheat leaf rust resistance genes.

Keywordswheat; leaf rust resistance gene; molecular marker; gene mapping; quantitative trait loci

小麦叶锈病是一种由小麦叶锈菌[PucciniatriticinaEriks.（Pt）]引起的、在小麦中传播较广、危害较严重的真菌性病害之一。（剩余11091字）